2,320 evidence-qualified pairs
Same community profile. Different election system.
County twins match on seven census measures, then reveal how reported turnout, mail ballots, provisional ballots and polling-place density can separate across state lines.
01Harding County, NMNew MexicovsKing County, TXTexaspolling-place densitylargest gap02Catron County, NMNew MexicovsJeff Davis County, TXTexaspolling-place densitylargest gap03Blaine County, NENebraskavsKent County, TXTexaspolling-place densitylargest gap04Esmeralda County, NVNevadavsKenedy County, TXTexaspolling-place densitylargest gap05Camas County, IDIdahovsBorden County, TXTexaspolling-place densitylargest gap06Clark County, IDIdahovsHamilton County, KSKansaspolling-place densitylargest gap07Golden Valley County, NDNorth DakotavsCottle County, TXTexaspolling-place densitylargest gap08Sioux County, NDNorth DakotavsCorson County, SDSouth Dakotapolling-place densitylargest gap09Sioux County, NDNorth DakotavsJackson County, SDSouth Dakotapolling-place densitylargest gap10Fulton County, ARArkansasvsDouglas County, MOMissouripolling-place densitylargest gap11Powder River County, MTMontanavsTowner County, NDNorth Dakotapolling-place densitylargest gap12Wheeler County, OROregonvsLoving County, TXTexaspolling-place densitylargest gap13Nelson County, NDNorth DakotavsPotter County, SDSouth Dakotapolling-place densitylargest gap14Alpine County, CACaliforniavsGlasscock County, TXTexaspolling-place densitylargest gap15Greeley County, KSKansasvsGlasscock County, TXTexaspolling-place densitylargest gap16Comanche County, KSKansasvsSheridan County, NDNorth Dakotapolling-place densitylargest gap17Jones County, SDSouth DakotavsMcMullen County, TXTexaspolling-place densitylargest gap18Terrell County, GAGeorgiavsZiebach County, SDSouth Dakotapolling-place densitylargest gap19Daniels County, MTMontanavsLogan County, NDNorth Dakotapolling-place densitylargest gap20Haskell County, KSKansasvsHudspeth County, TXTexaspolling-place densitylargest gap21Chase County, KSKansasvsCimarron County, OKOklahomapolling-place densitylargest gap22McCone County, MTMontanavsSlope County, NDNorth Dakotapolling-place densitylargest gap23Trego County, KSKansasvsHarding County, SDSouth Dakotapolling-place densitylargest gap24Lake of the Woods County, MNMinnesotavsPotter County, SDSouth Dakotapolling-place densitylargest gap25Huerfano County, COColoradovsMora County, NMNew Mexicopolling-place densitylargest gap26McCreary County, KYKentuckyvsEast Carroll Parish, LALouisianapolling-place densitylargest gap27Conecuh County, ALAlabamavsMenifee County, KYKentuckypolling-place densitylargest gap28Modoc County, CACaliforniavsComanche County, TXTexaspolling-place densitylargest gap29Montgomery County, NCNorth CarolinavsComanche County, TXTexaspolling-place densitylargest gap30Wilcox County, ALAlabamavsNorton city, VAVirginiapolling-place densitylargest gap31Mineral County, COColoradovsKeweenaw County, MIMichiganpolling-place densitylargest gap32Wheeler County, NENebraskavsSlope County, NDNorth Dakotapolling-place densitylargest gap33Hinsdale County, COColoradovsArthur County, NENebraskapolling-place densitylargest gap34Hidalgo County, NMNew MexicovsHarmon County, OKOklahomapolling-place densitylargest gap35Sargent County, NDNorth DakotavsSutton County, TXTexaspolling-place densitylargest gap36Ontonagon County, MIMichiganvsWheeler County, OROregonpolling-place densitylargest gap37Martin County, KYKentuckyvsEast Carroll Parish, LALouisianapolling-place densitylargest gap38Webster County, KYKentuckyvsMitchell County, TXTexasmail rejectionlargest gap39Clay County, GAGeorgiavsHarding County, NMNew Mexicopolling-place densitylargest gap40Echols County, GAGeorgiavsReagan County, TXTexaspolling-place densitylargest gap41Comanche County, KSKansasvsPiute County, UTUtahpolling-place densitylargest gap42Edwards County, TXTexasvsGalax city, VAVirginiapolling-place densitylargest gap43Franklin County, IAIowavsComanche County, TXTexaspolling-place densitylargest gap44Judith Basin County, MTMontanavsPierce County, NDNorth Dakotapolling-place densitylargest gap45Sioux County, NDNorth DakotavsTodd County, SDSouth Dakotapolling-place densitylargest gap46Van Buren County, ARArkansasvsLake County, MIMichiganpolling-place densitylargest gap47Stark County, ILIllinoisvsHardeman County, TXTexaspolling-place densitylargest gap48Roger Mills County, OKOklahomavsHot Springs County, WYWyomingpolling-place densitylargest gap49Clay County, ALAlabamavsVinton County, OHOhiopolling-place densitylargest gap50Stark County, ILIllinoisvsEllsworth County, KSKansaspolling-place densitylargest gap51Bear Lake County, IDIdahovsCedar County, NENebraskapolling-place densitylargest gap52Bullock County, ALAlabamavsMcDowell County, WVWest Virginiapolling-place densitylargest gap53Garden County, NENebraskavsBriscoe County, TXTexaspolling-place densitylargest gap54Scott County, KSKansasvsSterling County, TXTexaspolling-place densitylargest gap55Sullivan County, MOMissourivsConcho County, TXTexaspolling-place densitylargest gap56Calhoun County, ARArkansasvsStark County, ILIllinoispolling-place densitylargest gap57Cavalier County, NDNorth DakotavsMiner County, SDSouth Dakotapolling-place densitylargest gap58Trego County, KSKansasvsPotter County, SDSouth Dakotapolling-place densitylargest gap59Daniels County, MTMontanavsMotley County, TXTexaspolling-place densitylargest gap60Ontonagon County, MIMichiganvsAitkin County, MNMinnesotapolling-place densitylargest gap61Boyd County, NENebraskavsTowner County, NDNorth Dakotapolling-place densitylargest gap62Prairie County, ARArkansasvsDade County, MOMissouripolling-place densitylargest gap63St. Francis County, ARArkansasvsMorehouse Parish, LALouisianamail rejectionlargest gap64Sherman County, KSKansasvsDewey County, OKOklahomapolling-place densitylargest gap65Dolores County, COColoradovsPrairie County, MTMontanapolling-place densitylargest gap66Lyman County, SDSouth DakotavsMenominee County, WIWisconsinpolling-place densitylargest gap67Walsh County, NDNorth DakotavsMajor County, OKOklahomapolling-place densitylargest gap68Morrill County, NENebraskavsEllis County, OKOklahomapolling-place densitylargest gap69Candler County, GAGeorgiavsUpton County, TXTexaspolling-place densitylargest gap70Lucas County, IAIowavsKnox County, TXTexaspolling-place densitylargest gap71Cheyenne County, KSKansasvsCollingsworth County, TXTexaspolling-place densitylargest gap72Gosper County, NENebraskavsSteele County, NDNorth Dakotapolling-place densitylargest gap73Clay County, GAGeorgiavsWorth County, MOMissouripolling-place densitylargest gap74Yell County, ARArkansasvsLive Oak County, TXTexasmail rejectionlargest gap75Pulaski County, ILIllinoisvsRipley County, MOMissouripolling-place densitylargest gap76Clark County, KSKansasvsPierce County, NDNorth Dakotapolling-place densitylargest gap77Decatur County, KSKansasvsLogan County, NDNorth Dakotapolling-place densitylargest gap78St. Francis County, ARArkansasvsClay County, KYKentuckymail rejectionlargest gap79Greene County, ILIllinoisvsKnox County, NENebraskapolling-place densitylargest gap80Sullivan County, MOMissourivsHemphill County, TXTexaspolling-place densitylargest gap81Bear Lake County, IDIdahovsHanson County, SDSouth Dakotapolling-place densitylargest gap82Choctaw County, ALAlabamavsHardy County, WVWest Virginiapolling-place densitylargest gap83Yell County, ARArkansasvsGonzales County, TXTexasmail rejectionlargest gap84Stevens County, KSKansasvsLipscomb County, TXTexaspolling-place densitylargest gap85Buffalo County, SDSouth DakotavsJim Hogg County, TXTexaspolling-place densitylargest gap86Lamar County, ALAlabamavsClay County, ARArkansaspolling-place densitylargest gap87Nelson County, NDNorth DakotavsMills County, TXTexaspolling-place densitylargest gap88Wilcox County, ALAlabamavsClay County, WVWest Virginiapolling-place densitylargest gap89Miller County, GAGeorgiavsJefferson County, OKOklahomapolling-place densitylargest gap90Elk County, KSKansasvsMcPherson County, NENebraskapolling-place densitylargest gap91Prairie County, ARArkansasvsClark County, MOMissourimail rejectionlargest gap92Stevens County, KSKansasvsHarper County, OKOklahomapolling-place densitylargest gap93Seward County, KSKansasvsCrane County, TXTexaspolling-place densitylargest gap94Roosevelt County, MTMontanavsDewey County, SDSouth Dakotapolling-place densitylargest gap95Warren County, GAGeorgiavsPulaski County, ILIllinoispolling-place densitylargest gap96Lewis County, KYKentuckyvsKiowa County, OKOklahomapolling-place densitylargest gap97Jackson County, ARArkansasvsCasey County, KYKentuckymail rejectionlargest gap98Hodgeman County, KSKansasvsPowder River County, MTMontanapolling-place densitylargest gap99Campbell County, SDSouth DakotavsMason County, TXTexaspolling-place densitylargest gap100Hooker County, NENebraskavsFoard County, TXTexaspolling-place densitylargest gap101Washington County, IDIdahovsEastland County, TXTexaspolling-place densitylargest gap102Renville County, MNMinnesotavsBox Butte County, NENebraskapolling-place densitylargest gap103Perry County, ALAlabamavsSocorro County, NMNew Mexicopolling-place densitylargest gap104Grant County, NENebraskavsIrion County, TXTexaspolling-place densitylargest gap105Morrow County, OROregonvsWinkler County, TXTexaspolling-place densitylargest gap106Clearwater County, IDIdahovsFerry County, WAWashingtonpolling-place densitylargest gap107Washington County, NCNorth CarolinavsWebster County, WVWest Virginiapolling-place densitylargest gap108Yell County, ARArkansasvsMcDonald County, MOMissourimail rejectionlargest gap109Morton County, KSKansasvsConcho County, TXTexaspolling-place densitylargest gap110Perry County, ALAlabamavsMartin County, KYKentuckypolling-place densitylargest gap111Clearwater County, IDIdahovsGrant County, OROregonpolling-place densitylargest gap112Golden Valley County, MTMontanavsStonewall County, TXTexaspolling-place densitylargest gap113Floyd County, IAIowavsRenville County, MNMinnesotapolling-place densitylargest gap114Bourbon County, KYKentuckyvsAshland County, WIWisconsinpolling-place densitylargest gap115Fallon County, MTMontanavsClark County, SDSouth Dakotapolling-place densitylargest gap116Sullivan County, INIndianavsCrawford County, MOMissourimail rejectionlargest gap117Ozark County, MOMissourivsPocahontas County, WVWest Virginiapolling-place densitylargest gap118Meigs County, TNTennesseevsDoddridge County, WVWest Virginiapolling-place densitylargest gap119Lincoln County, IDIdahovsMorrow County, OROregonpolling-place densitylargest gap120Pope County, ILIllinoisvsFerry County, WAWashingtonpolling-place densitylargest gap
The index leads with pairs showing the largest normalized differences across at least two reported administrative measures. All 2,320 canonical pair pages remain discoverable through county and state records.